<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="http://localhost:8080/gzCalServlet" method="get">
  num1<input type="text" name="num1"><br>
  num2<input type="text" name="num2"><br>
  <input type="submit" value="提交">
</form>
</body>
</html>